CN203481093U - Device used for locking switch cabinet rear door and earthing switch - Google Patents
Device used for locking switch cabinet rear door and earthing switch Download PDFInfo
- Publication number
- CN203481093U CN203481093U CN201320501007.2U CN201320501007U CN203481093U CN 203481093 U CN203481093 U CN 203481093U CN 201320501007 U CN201320501007 U CN 201320501007U CN 203481093 U CN203481093 U CN 203481093U
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- China
- Prior art keywords
- switch
- main shaft
- rear door
- control device
- back door
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- Withdrawn - After Issue
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Abstract
The utility model discloses a device used for locking a switch cabinet rear door and an earthing switch. The locking device comprises a rear door which is provided with a connection opening, a main shaft which is connected with the connection opening on the rear door, a control device which is disposed on the main shaft, a catch, and a microswitch. The main shaft passes through the control device, and comprises a base, a spring, and a sleeve. The base is disposed on a right side plate of the rear door. The base is provided with a holding groove inside. The spring is disposed in the holding groove of the base. The sleeve is disposed in the holding groove of the base, and is connected with the spring in the holding groove. The catch is disposed on a tail end of the main shaft. The microswitch is disposed on a side plate, and a blocking pointer on the microswitch is connected with the control device. The device is simple in assembly process, simple in structure, convenient in assembly, and high in reliability.
Description
Technical field
The utility model relates to switch cubicle technical field, particularly a kind of for rear door of switch cabinet and earthed switch machinery and electrical interlock.
Background technology
Along with the extensive use of switch cubicle in electric power system, people have proposed new requirement to switch cubicle industry technology: the requirement ensureing mainly for switch cubicle and personal safety is more and more higher, during " five is anti-" of switch cubicle requires, prevent mistakenly entering charged chamber seem especially use important.
The mechanical interlocking function imperfection of traditional switch cabinet, when open at back door, still can operational grounding switch, the security presence hidden danger to maintainer, and without electrical interlock.According to the requirement of the strategic objective of the strong intelligent grid of current nation-building and Intelligent high voltage switch device construction, originally the back door of switch cubicle and earthed switch do not have electrical interlock, just can not provide Reliable guarantee for realizing intelligent switchboard system.In view of this, how guaranteeing to open back door or back door in the situation that of safety can not operational grounding switch while opening, and has just become and in switch cubicle design, has needed the problem considered.
Utility model content
The technical problems to be solved in the utility model be for existing Medium Voltage Switchgear back door and earthed switch interlocking by many interlocking shafts, formed and without in the situation of electrical interlock and emergency unlocking device, provide a kind of pass through that a main shaft realizes for rear door of switch cabinet and earthed switch machinery and electrical interlock.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of for rear door of switch cabinet and ground switch interlocking device; Described interlock comprises:
Back door, offers connector on described back door;
Main shaft, described main shaft is connected with the connector on back door;
Control device, described control device is arranged on main shaft, and run through by main shaft, described control device comprises seat, spring and cover, described seat is arranged on the right plate at back door, and described seat inside offers resettlement groove, and described spring is settled in present resettlement groove, described cover is settled in present resettlement groove, and is connected with the spring in resettlement groove;
Catch, described catch is arranged on main the tip of the axis;
Sensitive switch, is arranged on side plate, and the gear pin on described sensitive switch is connected with control device.
Further, described main shaft is connected with the operating axis on switch cubicle, is provided with two-way bevel gear between described operating axis and main shaft.
Further, described resettlement groove is respectively established an opening up and down, and the leading portion of described cover is respectively established a plush copper up and down, and the plush copper on described cover leading portion is connected with the opening on seat.
Further, described interlock also arranges a support, and described Stent Implantation, on the side plate at back door, is mounted with sensitive switch on described support.
Further, described catch is fixed on main the tip of the axis by hexagon socket head cap screw, and described catch coordinates and can form an emergency unlocking device with hexagon socket head cap screw.
Further, the gear pin on described sensitive switch puts in the resettlement groove of the seat on control device, and matches with the cover in resettlement groove.
Further, described interlock is applicable to middle pressure 3.6～40.5kV.
By technique scheme, the beneficial effects of the utility model are:
(1) the utility model assembly technology is simplified, and simple in structure, easy to assembly, reliability is high.
(2) the utility model not only makes rear cabinet mechanical interlocking be improved, and has increased emergency release function and electrical interlock function, for realizing intelligent switchboard system, provides strong guarantee.
(3) greatly save labour, saved cost.
(4) effectively prevent " preventing mistakenly entering charged chamber " in " five is anti-" requirement, guaranteed maintainer's personal safety.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the cutaway view of the utility model when grounding switch tripping;
Fig. 2 is end view of the present utility model;
The cover that Fig. 3 provides for the utility model and seat coordinate figure when grounding switch tripping;
Fig. 4 is the cutaway view of the utility model when earthed switch closes a floodgate;
Fig. 5 is front view of the present utility model;
The cover that Fig. 6 provides for the utility model coordinates figure with seat when earthed switch closes a floodgate.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1 and Fig. 2, the utility model provides a kind ofly mainly comprises main shaft 100, control device, catch 200 and sensitive switch 300 for rear door of switch cabinet and ground switch interlocking device.
The end of main shaft 100 is connected with the connector 110 on rear door of switch cabinet.
Control device, is the core apparatus of this device, by it, is grounded separating brake and the combined floodgate of switch, and it is specifically connected with main shaft 100.
Referring to Fig. 2, Fig. 3, Fig. 5 and Fig. 6, control device mainly comprises seat 110, overlaps 120 and spring 130.
The shell that seat 110 is control device, specifically can the side's of being arranged to body or bar shape, present 110 middle part offers resettlement groove, resettlement groove comprises the first groove 111 and the second groove 112, the second groove 112 is mate with main shaft 100 cylindric, the first groove 111 is arranged on the second groove 112 front ends, and the internal diameter of the first groove 111 is less than the internal diameter of the second groove 112.
The symmetry of locating up and down of the first groove 111 of present 110 is offered an opening 111a, for coordinating with cover 120, is convenient to overlap stretching in 120 present 110.
At cover 120 leading portion, respectively establish up and down a plush copper 121, and the opening 111a on the first groove 111 of plush copper 121 and seat 110 is in mating connection, when the plush copper 121 on cover 120 is ejected into the opening 111a the first groove 111 by spring 130 in the second groove 112, the main shaft 100 being attached thereto like this can not operate, thereby carries out spacing; When the opening 111a of the plush copper 121 of cover on 120 from the first groove 111 enters into the second groove 112 when interior, the main shaft 100 being attached thereto so just can operate.
For seat 110, overlap 120 and spring 130 between cooperation as follows:
Referring to Fig. 3, when rear shrouding or back door need to be shut, making to overlap 120 can be from the connector 110 on back door, to internal compression, then the cover on main shaft 100 120 and spring 130 can be pushed back to the second groove 112 of seat 110, in the situation that other interlocking allows, to earthed switch divide, closing operation.
Referring to Fig. 6, when open at rear shrouding or back door, when the plush copper up and down 121 that cover 120 makes to overlap 120 front end under the effect of spring 130 power is just connected with the upper and lower opening 111a of the front end of seat 100, cover 120 can not divide earthed switch from interior ejection to the first groove 111 of the second groove 112, closing operation.
Referring to Fig. 1 or Fig. 4, catch 200, is fixed on the end of main shaft 100 by hexagon socket head cap screw 210, and it is the switch that can not be opened for shrouding after controlling when the grounding switch tripping or back door.
Catch 200 matches with the opening 210 on rear shrouding or back door, and catch 200 can be in the interior turnover of opening 210.
When rear shrouding or back door are shut, the opening 111a from the first groove 111 of seat 110 is pressed in the second groove 112 by back door to overlap plush copper 121 on 120.Can carry out breaking-closing operating to earthing, when earthing is during at open position, because the position of catch 200 is upwards, then the opening 210 on shrouding or back door is downward, catch 200 can not overlap with opening 210, at this moment catch 200 just blocks rear shrouding or back door, and rear shrouding or back door can not be opened.
When rear shrouding or back door need to be opened, rotating spindle 100 makes the position of catch 200 downward, at this moment catch 200 just overlaps with the opening 210 on rear shrouding or back door, at this moment after, shrouding or back door just can be opened, and the position that simultaneously makes to overlap the opening 111a on the position of the plush copper 121 on 120 and the first groove 111 of seat 110 at rotating spindle 100 is identical, at this moment overlapping 120 just can be from the interior ejection of the second groove 112, and the opening 111a overlapping on the first groove 111 of plush copper 121 on 120 and seat 110 overlaps.
Because catch 200 is being controlled the switch at rear shrouding or back door, a specific purpose tool matching with hexagon socket head cap screw 210 on catch 200 only need be set in device, specific purpose tool can unload lower stop piece 200 by unloading hexagon socket head cap screw 210, catch 200 and hexagon socket head cap screw 210 can become an emergency unlocking device of this device like this, when running into emergency and need to open back door, only need unload hexagon socket head cap screw 210 by specific purpose tool takes off catch 200, and there is no catch 200, back door just can have been opened.
Referring to Fig. 1, in this device, be also provided with the required sensitive switch of electrical interlock 300.
When grounding switch tripping, shut rear shrouding or back door, at this moment overlapping 120 can push back in the second groove 112 of seat 110, at this moment overlapping 120 can contact with gear pin 320, make sensitive switch 300 can carry out contact action, sensitive switch 300 can be so that earthed switch can close a floodgate, like this, in the time need to guaranteeing to keep in good repair every year, what maintenance personal can safety opens rear shrouding or back door.
When earthed switch closes a floodgate, open rear shrouding or back door, at this moment overlapping 120 can eject from the groove of seat 110, at this moment overlapping 120 can coincide with the opening 111a of seat 110 by the plush copper 121 on it, at this moment overlaps 120 and does not just contact with the gear pin 320 of sensitive switch 300, and sensitive switch 300 just can not carry out contact action, earthed switch at this time just can not carry out separating brake, when maintainer opens rear shrouding or back door, earthed switch just can not operate, and has improved fail safe like this.
In addition, this device is used under middle pressure 3.6～40.5kV, and fail safe is higher.
By above-mentioned 7 parts, just can be grounded machinery and the electrical interlock at switch and rear shrouding or back door.Not only simplify the assembly technology of rear cabinet interlocking, improved the reliability of rear cabinet interlocking, increased emergency release function.And when rear shrouding or back door are not shut, earthed switch cannot divide, close a floodgate, thereby can effectively prevent " five is anti-" " preventing mistakenly entering charged chamber " in requiring, guarantee maintainer's personal safety.
Because the utility model only adopts 7 simple findings, just can realize interlock, replace traditional earthed switch and rear cabinet interlocking just can reach interlock requirement by an above interlocking shaft, and parts many, process the requirements such as loaded down with trivial details.Therefore no matter from processing, installation aspect, save many man-hours, thereby reduced the manufacturing cost of switch cubicle.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. one kind for rear door of switch cabinet and ground switch interlocking device; It is characterized in that: described interlock comprises:
Back door, offers connector on described back door;
Main shaft, described main shaft is connected with the connector on back door;
Control device, described control device is arranged on main shaft, and run through by main shaft, described control device comprises seat, spring and cover, described seat is arranged on the right plate at back door, and described seat inside offers resettlement groove, and described spring is settled in present resettlement groove, described cover is settled in present resettlement groove, and is connected with the spring in resettlement groove;
Catch, described catch is arranged on main the tip of the axis;
Sensitive switch, is arranged on side plate, and the gear pin on described sensitive switch is connected with control device.
2. according to claim 1 a kind of for rear door of switch cabinet and ground switch interlocking device, it is characterized in that: described main shaft is connected with the operating axis on switch cubicle, between described operating axis and main shaft, be provided with two-way bevel gear.
3. according to claim 1 a kind of for rear door of switch cabinet and ground switch interlocking device, it is characterized in that: described resettlement groove is respectively established an opening up and down, the leading portion of described cover is respectively established a plush copper up and down, and the plush copper on described cover leading portion is connected with the opening on seat.
4. according to claim 1 a kind of for rear door of switch cabinet and ground switch interlocking device, it is characterized in that: described interlock also arranges a support, described Stent Implantation, on the side plate at back door, is mounted with sensitive switch on described support.
5. according to claim 1 a kind of for rear door of switch cabinet and ground switch interlocking device, it is characterized in that: described catch is fixed on main the tip of the axis by hexagon socket head cap screw, and described catch coordinates and can form an emergency unlocking device with hexagon socket head cap screw.
6. according to claim 1 a kind of for rear door of switch cabinet and ground switch interlocking device, it is characterized in that: the gear pin on described sensitive switch puts in the resettlement groove of the seat on control device, and matches with the cover in resettlement groove.
7. according to claim 1 a kind of for rear door of switch cabinet and ground switch interlocking device, it is characterized in that: described interlock is applicable to middle pressure 3.6～40.5kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320501007.2U CN203481093U (en) | 2013-08-15 | 2013-08-15 | Device used for locking switch cabinet rear door and earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320501007.2U CN203481093U (en) | 2013-08-15 | 2013-08-15 | Device used for locking switch cabinet rear door and earthing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203481093U true CN203481093U (en) | 2014-03-12 |
Family
ID=50229375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320501007.2U Withdrawn - After Issue CN203481093U (en) | 2013-08-15 | 2013-08-15 | Device used for locking switch cabinet rear door and earthing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203481093U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441013A (en) * | 2013-08-15 | 2013-12-11 | 上海广电电气(集团)股份有限公司 | Interlocking device for switch cabinet rear door and earthing switch |
| CN105429039A (en) * | 2015-12-28 | 2016-03-23 | 安徽标先电气股份有限公司 | Cabinet door interlocking device for solid-encapsulated insulated switchgear |
-
2013
- 2013-08-15 CN CN201320501007.2U patent/CN203481093U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441013A (en) * | 2013-08-15 | 2013-12-11 | 上海广电电气(集团)股份有限公司 | Interlocking device for switch cabinet rear door and earthing switch |
| CN105429039A (en) * | 2015-12-28 | 2016-03-23 | 安徽标先电气股份有限公司 | Cabinet door interlocking device for solid-encapsulated insulated switchgear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20151021 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |